General Knowledge :: Inventions in the World
- Who discovered the electricity?
- In 1928 Penicillin was discovered by ¦¦¦¦¦¦..
- What invention was first installed at a Hartford, Connecticut bank in 1889?
- Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that?
- Who invented Bifocal Lens?